- Fix IPv6 addresses lost issue in pure ipv6 vsphere environment ([#86001](https://github.com/kubernetes/kubernetes/pull/86001), [@hubv](https://github.com/hubv)) [SIG Cloud Provider]
- Fix LoadBalancer rule checking so that no unexpected LoadBalancer updates are made ([#85990](https://github.com/kubernetes/kubernetes/pull/85990), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

## Changelog since v1.17.16

## Changes by Kind

### Bug or Regression

- Fix counting error in service/nodeport/loadbalancer quota check ([#97830](https://github.com/kubernetes/kubernetes/pull/97830), [@pacoxu](https://github.com/pacoxu)) [SIG API Machinery and Network]

- Automatic allocation of NodePorts for services with type LoadBalancer can now be disabled by setting the (new) parameter

- Fixed the following 
  -  AWS Cloud Provider attempts to delete LoadBalancer security group it didn’t provision

- Setting the `status.loadBalancer` of a Service whose `spec.type` is not `LoadBalancer` was previously allowed, but any update to the `metadata` or `spec` would wipe that field. Setting this field is no longer permitted unless `spec.type` is  `LoadBalancer`.  In the very unlikely event that this has unexpected impact, you can enable the `AllowServiceLBStatusOnNonLB` feature gate, which will...

- If Openstack LoadBalancer is not defined in cloud config, the loadbalancer will no longer beis not initialized. any more in openstack. All setups must have some setting under that section for the OpenStack provider. ([#65781](https://github.com/kubernetes/kubernetes/pull/65781), [@zetaab](http...

- Fix counting error in service/nodeport/loadbalancer quota check ([#97828](https://github.com/kubernetes/kubernetes/pull/97828), [@pacoxu](https://github.com/pacoxu)) [SIG API Machinery and Network]

- Kube-proxy: delete stale conntrack UDP entries for loadbalancer ingress IP. ([#104151](https://github.com/kubernetes/kubernetes/pull/104151), [@aojea](https://github.com/aojea)) [SIG Network]

  - [beta] Opt in source ip preservation for Services with Type NodePort or LoadBalancer ([docs](http://kubernetes.io/docs/tutorials/services/source-ip/)) ([kubernetes/features#27](https://github.com/kubernetes/enhancements/issues/27))

- Forbid to set matchLabelKeys when labelSelector is not set in topologySpreadConstraints ([#116535](https://github.com/kubernetes/kubernetes/pull/116535), [@denkensk](https://github.com/denkensk))
- GCE does not support LoadBalancer Services with ports with different protocols (TCP and UDP) ([#115966](https://github.com/kubernetes/kubernetes/pull/115966), [@aojea](https://github.com/aojea)) [SIG Apps and Cloud Provider]